EP0731258A1 - Collecteur d'échappement - Google Patents

Collecteur d'échappement Download PDF

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Publication number
EP0731258A1
EP0731258A1 EP96102547A EP96102547A EP0731258A1 EP 0731258 A1 EP0731258 A1 EP 0731258A1 EP 96102547 A EP96102547 A EP 96102547A EP 96102547 A EP96102547 A EP 96102547A EP 0731258 A1 EP0731258 A1 EP 0731258A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
tube
flange
exhaust manifold
cylinder tubes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96102547A
Other languages
German (de)
English (en)
Other versions
EP0731258B1 (fr
Inventor
Klaus Krüger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Friedrich Boysen GmbH and Co KG
Original Assignee
Erhardt Bischoff & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Erhardt Bischoff & Co KG GmbH filed Critical Erhardt Bischoff & Co KG GmbH
Publication of EP0731258A1 publication Critical patent/EP0731258A1/fr
Application granted granted Critical
Publication of EP0731258B1 publication Critical patent/EP0731258B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • F01N13/102—Other arrangements or adaptations of exhaust conduits of exhaust manifolds having thermal insulation

Definitions

  • the invention is based on an exhaust manifold, in particular an air-gap-insulated exhaust manifold for internal combustion engines.
  • the cylinder tube For connection it is possible to provide the cylinder tube to be connected with a collar which is connected to the tube by means of a weld seam.
  • the invention has for its object to provide an improved manifold, in particular an exhaust manifold, in terms of flow technology and manufacturing technology.
  • the invention proposes a manifold with the features mentioned in claim 1. Developments of the invention are the subject of dependent claims.
  • the cylinder tubes are shaped so that they have the direction of the collecting tube in their end region. This curvature, for example by 90 °, can be such that a gradual deflection of the gas jet is brought about.
  • the gases In its end region, when the gas flows into the collector pipe, the gases already have the same direction as the collector pipe, so that there is no one-sided local exposure to wall parts. There is no need to make holes in the wall of the collecting tube, since the cylinder tubes axially into it anyway open collector tube inserted or connected to this.
  • the cross section through the merged ends of the two cylinder tubes can each correspond to a semicircle, a semi-oval or another semi-shape. If, for example, the header tube has a circular cross section, the two cylinder tubes contain a semicircular cross section in their end region. In the case of an oval-shaped manifold, the cross section would accordingly have the shape of a half oval.
  • the invention is applicable not only to engines with two cylinder tubes, but also with several.
  • three cylinder tubes it is possible to design all three cylinder tubes in such a way that their end regions are aligned parallel to one another and abut one another. They can then be connected together with the axially aligned manifold.
  • the cross-sectional shapes For example, the two outer cylinder tubes are mirror-inverted and differ from the cross-sectional shape of the central cylinder tube, with the cross-sectional area of all three cylinder tubes preferably being the same here too.
  • the invention proposes in a further development that in a case with three cylinder tubes it can be provided that the first two cylinder tubes are first brought together in parallel and connected with an axially aligned intermediate header tube.
  • This intermediate header tube can then again be aligned and brought together in parallel with the third cylinder tube, a connection then being made, for example by plugging in, to the header tube running in the same direction.
  • the intermediate header pipe is brought together with the third cylinder tube, the intermediate header pipe is twice as large in cross-section as the cylinder tube, since it is supposed to take up the gas flow from two cylinder tubes.
  • the intermediate header pipe is secured against slipping by projections, bulges, projections or the like, the projections or the like being arranged in such a way that temperature expansions are still possible.
  • the parallel alignment of the merged ends of cylinder tubes proposed by the invention is particularly applicable to air-gap-insulated exhaust manifolds, in which the gas-carrying inner tube system is arranged within an outer shell which is connected to the cylinder flange and the Common flange connected, in particular welded.
  • the connection between the cylinder tubes and the header tube or the intermediate header tube can be made by simply plugging in, since gas tightness is no longer required. Appropriate shaping and close contact of the individual parts with one another can ensure that the leak is kept small.
  • the exhaust manifold shown in FIG. 1 contains a flange 1, which in its left part in FIG. 1, which extends over approximately two thirds of the total length, is designed as a cylinder flange 2. In his adjoining right Part of the flange 1 is then designed as a collecting flange 3. Starting from the cylinder flange 2, three cylinder tubes 4 are attached to the flange, for example by welding. Each cylinder tube 4 is connected to an opening in the cylinder flange 2, so that the gas jet passing through the opening of the flange 2 is discharged through the corresponding cylinder tube 4.
  • the cylinder tubes 4 are attached to the cylinder flange 2 at approximately a right angle and from there extend over a quarter arc in a direction which is essentially parallel or slightly oblique to the surface of the flange 1.
  • the first cylinder tube on the far left in FIG. 1, extends beyond the second cylinder tube 4, the two first cylinder tubes 4 abutting one another and running parallel to one another in their end regions 5. Both end regions 5 of the first two cylinder tubes 4 are guided into an intermediate header tube 6, the axis of which has the same direction as the end regions 5 of the cylinder tubes 4. There is therefore no deflection of the two gas jets emerging from the two cylinder tubes 4 in the intermediate header tube 6.
  • the intermediate header pipe 6 then continues approximately rectilinearly up to the header pipe 7, which is also aligned with the same axis.
  • the third cylinder tube 4 which is also bent over a quarter-circle arc, is parallel in its end region to the end region of the intermediate header tube 6 and bears on the wall thereof. It is inserted lying in the end of the collecting pipe 7 lying next to the intermediate collecting pipe 6, so that both the gas jet emerging from the intermediate collecting pipe 6 as well as the gas jet from the cylinder tube 4 run parallel to one another when entering the collecting tube 7.
  • the collecting tube 7 now takes up all gas jets and deflects them via the arch 8 present at its end to the part 3 of the flange which acts as a collecting flange.
  • an outer shell for example in the form of a hood, is arranged around the pipe arrangement shown in FIG. 1 and is welded to the flange 1 in a gas-tight manner.
  • Fig. 2 shows in its right half a section through the arrangement of Fig. 1 along the line B-B, i. H. at the point at which the end regions 5 of the two cylinder tubes 4 open into the intermediate header tube provided with a circular cross section.
  • the cross section of the two end regions 5 corresponds to a semicircle, with an evenly extending separating surface 9 between the two walls, which abut one another closely.
  • the intermediate header tube 6 is fitted with a close fit around the two end regions 5.
  • Both end regions 5 of the two first cylinder tubes 4 have the same cross-sectional shape and the same cross-sectional size. Since the same amount of gas flows out of both cylinder tubes, the same speed of the two gas streams is achieved in this way when entering the intermediate header tube 6.
  • Fig. 2 shows on the left a cross section through the arrangement along the line AA.
  • the end region 5 of the third cylinder tube 4 opens into the header tube 7 together with the end region of the intermediate header tube 6.
  • the end region of the intermediate header tube 6 lies against the end region of the third cylinder tube 4 along a flat separating surface.
  • the cross section of the intermediate header tube 6 is approximately twice as large as the cross section of the cylinder tube 4, since the gas flow exits the first two cylinder tubes 4 from the intermediate header tube 6.
  • Fig. 3 shows corresponding representations in an exhaust system in which both the header pipe and the intermediate header pipe 6 have an oval cross section.
  • Fig. 4 shows a longitudinal section through part of an arrangement on an enlarged scale.
  • the cylinder flange 2 has a plurality of openings 10, already mentioned, from which the exhaust gases of the internal combustion engine emerge.
  • the end of a cylinder tube 4 assigned to the engine is inserted and welded into each opening 10.
  • the opposite ends 5 of the two first cylinder tubes 4 are inserted into the intermediate header tube 6.
  • the two ends 5 of the first two cylinder tubes 4 are neither welded or soldered to one another nor to the intermediate header tube 6, so that the costs can be further reduced due to the elimination of such a connection.
  • the first cylinder tube 4 Shortly before its end region 5, the first cylinder tube 4 contains an outward projection in the form of a bead 11, which extends, for example, over part of its circumference.
  • the intermediate header tube 6 is inserted into the header tube 7 together with the third cylinder tube 4 resting on it.
  • the intermediate header 6 contains a bead 12 corresponding to the bead 11. The distance of the bead 12 from the associated end edge of the intermediate header 6 is selected so that thermal stresses can be absorbed.
  • the two beads 11, 12 are intended to prevent the intermediate collecting tube from slipping off 7 Prevent in the event of temperature changes and vibrations.
  • the ends 5 of the cylinder tubes 4 or the end region of the intermediate header tube 6 extend a relatively short distance into the subsequent component.
  • the arrangement is chosen so that each gas-carrying pipe element is inserted inside the subsequent pipe element.
  • the two joined ends 5 of the two first cylinder tubes 4 end in the same plane, as does the third cylinder tube 4 and the intermediate header tube 6.
  • FIG. 6 again shows the arrangement of FIG. 1, this time showing an outer shell 13 broken off at the ends of the flange 1, which is welded to the flange 1 along the edge thereof.
  • the flange 13 can also have holes 14 which correspond to corresponding connecting holes 15 of the flange 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
EP96102547A 1995-03-03 1996-02-21 Collecteur d'échappement Expired - Lifetime EP0731258B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19507439 1995-03-03
DE19507439A DE19507439A1 (de) 1995-03-03 1995-03-03 Auspuffkrümmer

Publications (2)

Publication Number Publication Date
EP0731258A1 true EP0731258A1 (fr) 1996-09-11
EP0731258B1 EP0731258B1 (fr) 2002-09-04

Family

ID=7755538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96102547A Expired - Lifetime EP0731258B1 (fr) 1995-03-03 1996-02-21 Collecteur d'échappement

Country Status (4)

Country Link
EP (1) EP0731258B1 (fr)
AT (1) ATE223556T1 (fr)
DE (2) DE19507439A1 (fr)
ES (1) ES2178683T3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1359294A1 (fr) * 2002-04-30 2003-11-05 Zeuna-Stärker Gmbh & Co Kg Jonction des gaz d'échappement à double paroi et à isolation d'air et procédé de production
EP1538314A1 (fr) * 2003-12-01 2005-06-08 Nissan Motor Company, Limited Collecteur d'échappement pour moteur à combustion interne
DE10261879B4 (de) * 2002-12-20 2012-09-27 Volkswagen Ag Abgassammelrohr
EP2228529B1 (fr) 2009-03-13 2016-07-27 Ford Global Technologies, LLC Culasse pour moteur atmosphérique et utilisation d'une telle culasse
USD812100S1 (en) 2015-03-31 2018-03-06 Litchfield Imports Limited Exhaust manifold
CN114135380A (zh) * 2022-01-27 2022-03-04 潍柴动力股份有限公司 一种排气歧管

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19917604C5 (de) * 1998-04-20 2009-09-10 Honda Giken Kogyo K.K. Wärmeisolierter Abgaskrümmer
DE19957979B4 (de) * 1999-12-02 2006-08-10 Audi Ag Abgaskrümmer

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2344863A (en) * 1942-04-09 1944-03-21 Continental Motors Corp Internal combustion engine
US3043094A (en) * 1960-02-29 1962-07-10 Alco Products Inc Exhaust manifolds
JPH01138311A (ja) * 1987-11-24 1989-05-31 Mazda Motor Corp エンジンの排気通路構造
WO1992003639A1 (fr) * 1990-08-13 1992-03-05 Flowmaster, Inc. Ensemble de collecteur pour moteur a combustion interne et procede
JPH051534A (ja) * 1991-02-18 1993-01-08 Yutaka Giken Co Ltd 排気管
DE4226171A1 (de) * 1992-08-07 1994-02-10 Bischoff Erhardt Gmbh Co Kg Abgaskrümmer
US5299419A (en) * 1992-11-02 1994-04-05 Bittle James J Gas flow headers for internal combustion engines
DE4342572C1 (de) * 1993-12-14 1994-11-24 Mtu Friedrichshafen Gmbh Abgasanlage für eine aufgeladene Brennkraftmaschine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2344863A (en) * 1942-04-09 1944-03-21 Continental Motors Corp Internal combustion engine
US3043094A (en) * 1960-02-29 1962-07-10 Alco Products Inc Exhaust manifolds
JPH01138311A (ja) * 1987-11-24 1989-05-31 Mazda Motor Corp エンジンの排気通路構造
WO1992003639A1 (fr) * 1990-08-13 1992-03-05 Flowmaster, Inc. Ensemble de collecteur pour moteur a combustion interne et procede
JPH051534A (ja) * 1991-02-18 1993-01-08 Yutaka Giken Co Ltd 排気管
DE4226171A1 (de) * 1992-08-07 1994-02-10 Bischoff Erhardt Gmbh Co Kg Abgaskrümmer
US5299419A (en) * 1992-11-02 1994-04-05 Bittle James J Gas flow headers for internal combustion engines
DE4342572C1 (de) * 1993-12-14 1994-11-24 Mtu Friedrichshafen Gmbh Abgasanlage für eine aufgeladene Brennkraftmaschine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 13, no. 392 (M - 865)<3740> 30 August 1989 (1989-08-30) *
PATENT ABSTRACTS OF JAPAN vol. 17, no. 263 (M - 1415) 24 May 1993 (1993-05-24) *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1359294A1 (fr) * 2002-04-30 2003-11-05 Zeuna-Stärker Gmbh & Co Kg Jonction des gaz d'échappement à double paroi et à isolation d'air et procédé de production
DE10261879B4 (de) * 2002-12-20 2012-09-27 Volkswagen Ag Abgassammelrohr
EP1538314A1 (fr) * 2003-12-01 2005-06-08 Nissan Motor Company, Limited Collecteur d'échappement pour moteur à combustion interne
EP1803909A2 (fr) * 2003-12-01 2007-07-04 Nissan Motor Co., Ltd. Collecteur d'échappement pour moteur à combustion interne
EP1803909A3 (fr) * 2003-12-01 2007-07-18 Nissan Motor Co., Ltd. Collecteur d'échappement pour moteur à combustion interne
CN100375830C (zh) * 2003-12-01 2008-03-19 日产自动车株式会社 内燃机排气歧管
US7669412B2 (en) 2003-12-01 2010-03-02 Nissan Motor Co., Ltd. Exhaust manifold for internal combustion engine
US20100115933A1 (en) * 2003-12-01 2010-05-13 Nissan Motor Co., Ltd. Exhaust manifold for internal combustion engine
US8459016B2 (en) 2003-12-01 2013-06-11 Nissan Motor Co., Ltd. Exhaust manifold for internal combustion engine
EP2228529B1 (fr) 2009-03-13 2016-07-27 Ford Global Technologies, LLC Culasse pour moteur atmosphérique et utilisation d'une telle culasse
USD812100S1 (en) 2015-03-31 2018-03-06 Litchfield Imports Limited Exhaust manifold
CN114135380A (zh) * 2022-01-27 2022-03-04 潍柴动力股份有限公司 一种排气歧管

Also Published As

Publication number Publication date
DE19507439A1 (de) 1996-09-05
ATE223556T1 (de) 2002-09-15
DE59609613D1 (de) 2002-10-10
ES2178683T3 (es) 2003-01-01
EP0731258B1 (fr) 2002-09-04

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